A three-character feminine-name transliteration. The closing 娜 (nà) is the standard 'feminine' character in Chinese transliterations of Western names — compare 安娜 (Anna), 戴安娜 (Diana), 朱莉娅娜 (Juliana). 安-苏-娜 maps to 'An-su-na'.
memory
Read for sound, but the characters happen to mean 'peace' (安), 'revive / Suzhou' (苏), 'graceful' (娜) — a flattering combination that fits a princess or heroine.